Mathematics

Wilson’s Theorem

Wilson’s Theorem is a test for primality.  It is inefficient for large numbers since factorials () grow very fast.  Nevertheless, it has its uses because of its simplicity. It was conjectured by Wilson and published [more…]

No Picture
Authoritarianism

Climate Change Protests

Yet another climate protest against our use of fossil fuels. Spokes-persons berate us over air-waves driven by generated electricity carried by steel pylons cemented into the ground. They sit in a studio with its array [more…]

OldTrout, Going Postal
Mathematics

Commutativity

A binary operation is said to commute if the order of the operands does not alter the result. In the real numbers, , the following commutative laws hold : for all for all Although these [more…]